This page catalogs 31 sustainability projects based in Hong Kong on Keys for Tomorrow. Examples from the directory include Nomad Plastic (converting plastic waste into fuel), CHOMP (a food-saving app tackling food waste), Choose Planet A (sustainable packaging), and Solomon Learning (education for real-world impact). How many sustainability projects from Hong Kong are on Keys for Tomorrow? Keys for Tomorrow currently catalogues 31 sustainability and impact-driven projects based in Hong Kong, spanning categories such as clean energy, sustainable agriculture, waste reduction, and social enterprise.